<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
      <form action="upload" method="post" enctype="multipart/form-data">
          <input type="file" name="tuopian">
          <button>上传</button>
      </form>
</body>
</html>